An orca swims 300 miles in 6 days. Identify the equation that could be used to find how many miles it swims in 14 days.

Let's define the variables:

Let x be the number of miles the orca swims in 14 days.

We'll use the equation:

x = (300 miles / 6 days) * 14 days

Simplifying the equation:

x = (300 miles / 6 days) * (14 days / 1)

x = 300 * (14 / 6) miles

x = 700 miles

Therefore, the equation that could be used to find how many miles the orca swims in 14 days is x = 700 miles.